Main Entry: ²jerk

Function: verb

Date: 1589

transitive verb

1 : to give a quick suddenly arrested push, pull, or twist to
2 : to propel or move with or as if with a quick suddenly arrested motion
3 : to mix and serve (as sodas) behind a soda fountainintransitive verb 1 : to make a sudden spasmodic motion
2 : to move in short abrupt motions or with frequent jolts

— jerk·er noun